T = int(input())
p = T in range(1, 101)
if p:
for i in range(T):
a, b = map(int, input().split())
p1 = all(x in range(101) for x in [a, b])
print(sum((a, b)) if p1 else "请满足0≦a,b≦100的正整数")
else:
print("请满足1≦T≦100的正整数")

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